/Engine/Plugins/NetcodeUnitTest/NetcodeUnitTest/Source/NetcodeUnitTest/Classes/NUTActor.h
Takes a string representing a delegate (can't replicate delegate parameters), and executes that delegate on the server
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(Reliable, Server, WithValidation) void ServerExecute ( const [FString](API\Runtime\Core\Containers\FString) & InDelegate )